Gazelle/static/functions/datetime_picker.js

var dateFormat = 'Y-m-d';
var timeFormat = 'H:i';
var timeStep = 15;
$(document).ready(function() {
	$.getScript("static/functions/jquery.datetimepicker.js", function() {
		$(".date_picker").datetimepicker({
			timepicker: false,
			format: dateFormat,
			validateOnBlur: false
		});
		$(".datetime_picker").datetimepicker({
			format: dateFormat,
			step: timeStep,
			validateOnBlur: false
		});
		$(".time_picker").datetimepicker({
			format: timeFormat,
			datepicker: false,
			step: timeStep,
			validateOnBlur: false

		});
	});
});